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原文传递 Take your hybrid electric vehicles (HEVs) and battery electric vehicles (BEVs) diagnostics to the next level

题名：	Take your hybrid electric vehicles (HEVs) and battery electric vehicles (BEVs) diagnostics to the next level
正文语种：	eng
作者：	DAVE BARDEN
作者单位：	POWER PROBE®
摘要：	When I began testing the new Power Probe VT750LCD, I was somewhat unfamiliar with two-pole voltage testers and what made them different than a multimeter. The VT750LCD is a simple, compact CATⅢ/1000V voltage tester. It just does not have all the ranges and test modes a traditional meter has, which in some situations makes it a simpler, easier to use tool. After attending a recent industry training, I learned that this is exactly the kind of tool needed when servicing hybrid electric vehicles (HEVs) and battery electric vehicles (BEVs) because of its simplicity. A critical step when working around the vehicle's high-voltage system is verifying that the main battery is truly disconnected and the system capacitors are completely discharged so it is safe to work around. Doing this test with a typical multimeter, while possible, has some inherent risks that can be reduced or eliminated when using a two-pole voltage tester. 1. The VT750LCD is safety-rated at 1000V CAⅢ, pretty much the highest rating, typically only found in more expensive meters. When working around very high voltages, this reduces the risk that the meter itself or its leads are any possible source of arcs or shorting. The VT750LCD probes also have retracting insulators around the probe test points. This helps prevent accidental shorts between the probes or surrounding objects.
出版年：	2022
期刊名称：	Motor age
卷：	141
期：	6
页码：	44-44